BlogJava-xsong-随笔分类-java

转贴 jvm指令解析

xsong — Fri, 23 Sep 2011 05:55:00 GMT

摘要: Code highlighting produced by Actipro CodeHighlighter (freeware)http://www.CodeHighlighter.com/-->//源代码class TT{ static int tt = 5;&nb... 阅读全文

xsong 2011-09-23 13:55 发表评论

java enum

xsong — Mon, 01 Aug 2011 08:20:00 GMT

enum Action {Start, Stop, Rewind, Forward};

// Special type of class
enum Status {
  Flunk(50), Pass(70), Excel(90);
  private final int value;
  Status(int value) { this.value = value; }
  public int value() { return value; }
};

Action a = Action.Stop;
if (a != Action.Start)
  System.out.println(a);               // Prints "Stop"

Status s = Status.Pass;
System.out.println(s.value());      // Prints "70"

xsong 2011-08-01 16:20 发表评论

java 证书生成 xml httpClient post 提交

xsong — Fri, 13 May 2011 03:50:00 GMT

摘要: java 证书公钥加密生成xml 使用http post发送到servl et , servlet私钥解密 xml格式 1 ：消息格式： XML 消息格式如下：阅读全文

xsong 2011-05-13 11:50 发表评论

InputStream、OutputStream、String的相互转换

xsong — Fri, 13 May 2011 03:48:00 GMT

1.OutputStream写入String

ByteArrayOutputStream baos = new ByteArrayOutputStream();
//向OutPutStream中写入，如 message.writeTo(baos);
String str = baos.toString();

2.字符串转inputStream

String string;
//
InputStream is = new ByteArrayInputStream(string.getBytes());

3.InputStream转字符串

ByteArrayOutputStream baos = new ByteArrayOutputStream();
int i;
while ((i = is.read()) != -1) {
    baos.write(i);
}
String str = baos.toString();
System.out.println(str);

4.String写入OutputStream

OutputStream os = System.out;
os.write(string.getBytes());

xsong 2011-05-13 11:48 发表评论

BlogJava-xsong-随笔分类-java

转贴 jvm指令解析

java enum

java 证书 生成 xml httpClient post 提交

InputStream、OutputStream、String的相互转换

java 证书生成 xml httpClient post 提交